I have this car for sale it does not have a/c the party interested has told me it came with factory a/c, but I have been told it did not and if a cadillac has a/c it has to be after market which is ri...

My 2002 Cadillac DeVille wasn’t running right so I ran the DIC and it showed a misfire code. It did not specify which cylinder was missing so I ask my son to bring over his fancy diagnosis system. He...

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